/**
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (the "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
 * specific language governing rights and limitations under the License.
 *
 * The Original Code is ""  Description:
 * ""
 *
 * The Initial Developer of the Original Code is University Health Network. Copyright (C)
 * 2001.  All Rights Reserved.
 *
 * Contributor(s): ______________________________________.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * GNU General Public License (the  "GPL"), in which case the provisions of the GPL are
 * applicable instead of those above.  If you wish to allow use of your version of this
 * file only under the terms of the GPL and not to allow others to use your version
 * of this file under the MPL, indicate your decision by deleting  the provisions above
 * and replace  them with the notice and other provisions required by the GPL License.
 * If you do not delete the provisions above, a recipient may use your version of
 * this file under either the MPL or the GPL.
 */
package ca.uhn.hl7v2.testpanel.util;

import java.io.File;

import javax.swing.filechooser.FileFilter;

/**
 * Based on code from http://www.java2s.com/Code/Java/Swing-JFC/CustomizingaJFileChooser.htm
 */
public class ExtensionFilter extends FileFilter {
    private String extensions[];

    private String description;

    public ExtensionFilter(String description, String extension) {
      this(description, new String[] { extension });
    }

    public ExtensionFilter(String description, String extensions[]) {
      this.description = description;
      this.extensions = (String[]) extensions.clone();
    }

    public boolean accept(File file) {
      if (file.isDirectory()) {
        return true;
      }
      int count = extensions.length;
      String path = file.getAbsolutePath();
      for (int i = 0; i < count; i++) {
        String ext = extensions[i];
        if (path.endsWith(ext)
            && (path.charAt(path.length() - ext.length()) == '.')) {
          return true;
        }
      }
      return false;
    }

    public String getDescription() {
      return (description == null ? extensions[0] : description);
    }
  }